Perform the operation in expanded notation. Write answer in simplified form.57 + 31
A. 88
B. 544
C. 108
D. 98
Answer: A
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Find the missing dimension of the figure shown. Round to the nearest tenth unless otherwise directed in parentheses.
A. 5.2" B. 4.3" C. 4.8" D. 5.1"
Solve the problem. Round to the nearest hundredth, if necessary.The monthly incomes of trainees at a local mill are normally distributed with a mean of $1100 and a standard deviation $150. What percentage of trainees earn less than $900 a month?
A. 90.82% B. 40.82% C. 35.31% D. 9.18%
Interpret the linear equation.The monthly cost of a certain long distance service is given by the linear function 
where y is in dollars and x is the amount of time in minutes called in a month. Find and interpret the slope and y-intercept of the linear equation.
A. m = 0.04; The number of minutes called in a month increases 0.04 for every dollar spent. b = 7.95; The number of minutes that can be called when x = 0 is 7.95. B. m = 7.95; The number of minutes called in a month increases 7.95 for every dollar spent. b = 0.04; The number of minutes that can be called when x = 0 is 0.04. C. m = 0.04; The cost of the long distance service increases $0.04 for every 1 minute called. b = 7.95; The cost of the long distance service is $7.95 if no calls are made for the month. D. m = 7.95; The cost of the long distance service increases $7.95 for every 1 minute called. b = 0.04; The cost of the long distance service is $0.04 if no calls are made for the month.
Find the compound amount for the deposit. Round to the nearest cent.$300 at 12% compounded quarterly for 2 years
A. $318.27 B. $376.32 C. $372.00 D. $380.03